ClusterPi/docker-compose.redis.yml at main · JeanFD/ClusterPi · GitHub

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version: "3.9"

# Topologia: 6 masters × 2 replicas. Cada nó roda 3 instâncias:
#   - redis-a (port 6379): master do slot do próprio nó
#   - redis-b (port 6380): replica do master do nó (i-1)%6  (vizinho anterior)
#   - redis-c (port 6381): replica do master do nó (i-2)%6  (dois antes)
# Anel com offsets +1 e +2: qualquer 2 nós caindo, todo master tem
# ao menos 1 replica viva em host diferente → failover continua funcionando.

services:
  redis-a:
    image: redis:7-alpine
    container_name: cluster-redis-a
    restart: always
    network_mode: host
    command: >
      redis-server /etc/redis/redis.conf
      --port 6379
      --dir /data/redis-a
      --cluster-config-file nodes.conf
      --pidfile /data/redis-a/redis.pid
    volumes:
      - ./redis/redis.conf:/etc/redis/redis.conf:ro
      - /data/redis-a:/data/redis-a
    healthcheck:
      test: ["CMD", "redis-cli", "-p", "6379", "ping"]
      interval: 5s
      timeout: 3s
      retries: 5

  redis-b:
    image: redis:7-alpine
    container_name: cluster-redis-b
    restart: always
    network_mode: host
    command: >
      redis-server /etc/redis/redis.conf
      --port 6380
      --dir /data/redis-b
      --cluster-config-file nodes.conf
      --pidfile /data/redis-b/redis.pid
    volumes:
      - ./redis/redis.conf:/etc/redis/redis.conf:ro
      - /data/redis-b:/data/redis-b
    healthcheck:
      test: ["CMD", "redis-cli", "-p", "6380", "ping"]
      interval: 5s
      timeout: 3s
      retries: 5

  redis-c:
    image: redis:7-alpine
    container_name: cluster-redis-c
    restart: always
    network_mode: host
    command: >
      redis-server /etc/redis/redis.conf
      --port 6381
      --dir /data/redis-c
      --cluster-config-file nodes.conf
      --pidfile /data/redis-c/redis.pid
    volumes:
      - ./redis/redis.conf:/etc/redis/redis.conf:ro
      - /data/redis-c:/data/redis-c
    healthcheck:
      test: ["CMD", "redis-cli", "-p", "6381", "ping"]
      interval: 5s
      timeout: 3s
      retries: 5